She couldn't persuade a single member of the British media to run her exclusive story about war-ravaged Uganda. So why should anyone see Jane Bussmann's one-woman show on the same topic at Edinburgh? Quite simply, because it's one of the most passionate, smart, hilarious hours on the Fringe, packed with so many absurd one-liners that it's impossible to stop laughing, even as your brain buzzes with fury at the story she relates.

And what a story. Last year, Bussmann realised that she had "worked my entire adult life being useless": essentially, writing about inane celebrities for fashion magazines. So she decided to do something useful and travelled to Uganda, where she ended up in the heart of the war zone, interviewing military leaders and children kidnapped to bolster Joseph Kony's Lord's Resistance Army, and discovering just how little the Museveni government is doing to resolve the situation.

So far, so worthy. But what Bussmann also reveals, pricelessly, is that she only went to Uganda because she has the hots for an American peacemaker intermittently working there; that she spent her entire time in Uganda blundering about idiotically; and that - as you might expect from a writer of Brass Eye and South Park - she can spin twisted, brilliant gags out of the unlikeliest of material. There's something winning about her self-deprecating personality, and something surprisingly powerful in her avoidance of political correctness. Visiting camps full of maimed, raped children, she says: "I'd not seen such a depressing sight since I caught my ex-boyfriend wanking and crying at the same time." Yes, it's coarse - but it's just the combination of pathos, anger and humour needed to make audiences sit up and listen to what she has to say.